schauman



K. 0. SCHAUMAN. BUMPER ACTUATED VEHICLE CONTROL MECHANISM.

APPLICATION FlLED lULY18 922. I

' 3 SHEETS-SHED l.

v Reissued Oct. 10,1922.-

K, 0. SCHAUMAN. I BUMPER ACIUATED VEHICLE CON-TROL'MECHANISM.

APPLICATION FILED JULYIB WZZ- Reis sued Oct; 10, 1922.

W W W m.

K. O. SCHAUMAN.

BUMPER ACTUATED VEHICLE CONTROL MECHANISM.

APPLICATION FILED lULY1B.l922.

3 SHEETS-SHEET 3.

Rissued Oct. 10, 1922.

9 s9 I W MW.

Reissued Oct. 10,:1922.

UNITED .STATES' KARL OBTEN SCHAUMAN, OF SAN FRANCISCO, CALIFORNIA, ASSIGNOR T O H. AVERY.

' Re. 15,467 PATENT OFFICE.

BC'MPER-ACTUATED VEHICLE CONTROL MECHANISM.

Original No. 1,398,399, dated November 29, 1921, Serial No. 371,384, filed April 5, 1920. Application for reissue filed July 18, 1922. Serial No. 575,883.

To all whom it may concern:

Be it known that I, KARL OSTEN SoHAU- MAN, a subject of Sweden, residing at the city and county of San Francisco and State of California, have invented certain new hicle.

The principal objects of this invention are the rovision of impact receiving members, pre erably in the form of bumpers, associ ated with the front and rear end of the vehicle and connected in such manner with the drive mechanism of the vehicle, preferably the clutch, and with the brake mechanism, preferably the emergency brake, so that on the encountering of an object by the bumpers or impact receiving members, the emergency brake is automatically applied and the clutch is automatically released.-

A further ob'ect is to providemeans associated witht e impact actuated devices, whereb the action of the bumper at the rear 0 the machine,'relative to the other operatin units, is disconnected during such time as t e vehicle is traveling in a forward direction, and is only in operative connection during the rearward mjovement of the vehicle. A further object is to provide a construction associated with the emergency brake and clutch whereby the same are capable of being operated simultaneously, and a further object is to provide a construction referably electrically operated and which is actuated independently of any act of the operator after an object has been engaged by the bumper.

With the above mentioned and other objects in view, the invention consists in the novel construction and combination of parts hereinafter described, illustrated in the accompanying drawings and pointed out in the claims hereto appended; it being understood that various changes in the form, proportion, size and minor details of construction, within the scope of the claims may be resorted to without departing from the spirit or sacrificing any of the advantages of the invention.

To more fully comprehend the invention, reference is directedto the accompanying drawings wherein Figure 1 is a view in side elevation disclosing, in broken, outline, amotor driven vehicle with the preferred embodiment of my invention incorporated therein.

Fig. 2 is a diagrammatic lan view of the electric wiring circuit to Be employed in connection with the preferred embodiment of my invention.

. Fig. 3 is a view in lan of a portion of a motor driven vehice with the control levers and pedals illustrated, and a ortion of my invention connected therewit Fi 4 is an enlar ed longitudinal sectiona view of the electrically controlled, mechanically actuated, mechanism for operating the emergency brake and releasing the clutch pedal.

Fig. 5 is a vertical sectional view of the shift lever control switch for cutting out the electric circuit to the rear impact receiving member. Fi re 6 is a sectional view taken on line VI I of Fig. 5.

Referringmore particularly to the'drawings, wherein like characters of reference designate corresponding parts, the numeral 1 indicates a motor vehicle frame; 2 the supporting wheels, and at the front end of the frame is positioned a suitable form of impact receiving member or bum r 3, and a like construction 4 is associate with the rear end of the vehicle frame. In the drawings the bumpers are illustrated in the form of rear or stationary portions 5 and the front or impact receiving portions 6 spaced therefrom and connected at their ends with the rear portions 5 by the spring or yieldable curved integral members or portions 7 The vehicle is provided with the usual control elements in the form of a gear shift lever 8, emergency brake 9, clutch control pedal 10 and foot brake 11, partially illustrated in Figs. 1 and 3 of the drawings.

To simultaneously operate the clutch edal 10, the emergency brake lever 9, the

rake to apply and the clutch to release any suitable mechanism may be used, the referred form illustrated particularly in igs. 1 and 4 of the drawings being constructed as follows:

Positioned over an openin 12 in the incline foot board 13 is a hoo 14 wlthm the end of which opening into the operators glidabl mounted within the casing 23 is a suita le plunger forming guide tube 25 closed at its outer end by a rin 26 through which'extendsa threaded tubu ar shaft 27 disposed in line with the bore 19 of the member 17, the shaft being freely slidable throu h the ring 26. The outer end of the threa ed member 27 is fulcrumed as at 28 to a bracket 29 clamped to the emergency 'brake lever 9, and an abutment collar 30 is carried by the outer end of the member 27 to approximatel contact with the ring 26 when the threa ed member 27 is in its innermost position, as in Fig. 4 of the drawings. The abutment 30 provides a surface with which the collar 26 contacts on the outward movement of the plunger, This construction permits of the operation of the lever 9 independently of the operation of the plunger 25.

Coiled about the threaded member 27 with one end abutting against the member 17 within the flange 18 and with the other end abutting against the ring 26, is an operating spring 31 for forcing the tube 25 outwardly to automatically apply the emergency brake 9 on the release of a hereinaf ter described mechanism.

The collar 26 is provided with a lateral opening 32 and said collar carries, adjacent said opening, a transverse pin 33 about which is looped or drawn a flexible cord or member 34 extending into the center of the threaded member 27 through an opening 35 in its side wall, and with one end extending upwardly through said member 27, through the bore 19, tube 20 and around the sheave 21, said member passing around a second sheave 36 and connected at its free end as at 37, to the clutch control pedal 10. This construction permits the manual operation of the brake lever 9 and the reciprocation of the threaded member 27 within the plunger 25 without affecting the operation of the clutch pedal 10 or the operation ofthe plun er 25. The inner end of the flexible mem r 34 is secured in any suitable manner to the threaded member 27 and the adjustment of the flexible member about the pin 33 enables the proper tension to be placed on the flexible member, whereby on the projecting of the plunger tube 25 from the casmg 23 the clutch pedal is simultaneously operated to releasethe clutch durlng the application of the emergency brake 9.

The means for controlling the operation of the sprin actuated mechanism associated with the pedal 10 and brake lever 9' is preferably constructed in the following man'- ner:

The collar 24 supports a casing 38 in which is mounted a coi 39 carrying a core 40. Through the core extends a pin 41 headed at its up er end and loosely extending through a late 42 pivoted as at 43 to a flange 44 extending downwardl into the casing 38.

Slidable longitudinally of the latch 42 and positioned above the same is a pawl 45 guided in its movement by a pin 46 extending through a slot 47 in the pawl. The forward end of the awl is pointed as at 48 and projects upwar ly through an o ening- 49 in the top of the flange 24 and is a apted to engage in suitable stops or recesses 50 formed in the side of the tubular plunger 25. A coiled spring 51 disposed vertically with one end associated with the latch 45 and the other end with the flange 44 forces said latch normally upwardly and draws the same normally to a position with the pointed end received within one of the recesses 50 at which time the lip ed end 52 of the and maintains t e same in the position as in Fig. 4 of the drawings.

On the energizing of thecoil 39 in a manner hereinafter described, the core 40 is raised therein,- strikes the latch 42 and the operation thereof removes the lip 52 from in rear of the pawl 45 permitting the plunger s ring 31 to actuate the plunger to proect t e same outwardly in the tube 23, the

.outward movement of the plunger causing a gradual depression of the pawl 45 until the same is released from its associated notch 50, atwhich time the lunger 25 makes a full stroke outward shi ting the' brake lever 9 to set the brakes and release the clutch through action on the pedal 10.

For energizing the coil 39 to control the operation of the core 40 on either the front bumper 3 or rear bumper 4' receivin an impact, I -prefer to employ the followmgelectrio circuit:

Associated with the opposite ends of the front bumper 3 are the spaced contact switches or points 53 and 53 from which extends rspecti-vel the leads 54 and 54'. A lead 55 extends rom the lead 54 and connects with the coil 39.

Extending fromthe lead 54 is a lead 55' which branches and terminates at the rear the vehicle.

pawl en ages in rear 0 the latch Disposed in spaced relation to the contacts I 56' and in the same relative position at the rear of the vehicle, as are the front contacts, that is between the rigid and movable portions of the rear bumper, are other contacts 56 from which extend the leads 57. A battery 58 is provided connecting the lead 55' with the coil 39, and from said battery partment of the vehicle is a tubular sup-,

port 61 carrying a tubular member 62 closed at its upper end by a cap 63 and upwardly into the tubular member 62 is extended an insulating cylinder 64 through which ex-- with the finger, the circuit is complete through the lead 59.

i To interrupt the circuit and render inoperative the rear bumper 4, I employ a lever 7273 mounted to swing on a pivot adjacent the outer end of a lateral slot 71 formed in an arm extending to one side of the closure cap 63, the lever consisting of an inner insulating material 72 and an outer protecting metallic covering 73. The insulatin material is adapted on the ivoting of the fiver and the movement 0 the gear shifting rod 8 to reverse driving position to lie without and free of contact with the member. 67 and finger 69 and when in this position the gear shift lever 8 is adapted to move over the beveled face 73 of the outer end of the lever.

To normally separate the contacts 67 and 69, I employ a spring 74 within the opening 71 of the lateral arm and thetension of which is to normally maintain the insulating portion of the lever disposed to separate the contacts 67 and 69. The lead 55 and the extension from the battery 58 connect with the coil 39 preferably through a tube 75, Fig. 4 of the drawings.

I claim:

1. In combination with a motor driven vehicle provided with a brake for retarding the movement thereof, a brake lever associated therewith, a bumper carried by the vehicle, electrically controlled means connected therewith and wit-h said brake lever and thrown into operation on said bumper engaging an object for operating said brake lever -to actuate the brake to retard the movement of the vehicle. v

2. In combination with a motor driven vehicle provided with a'brake and a'clutch mechanism, a brake lever associated with the brake mechanism and a clutch pedal associated with the clutch mechanism, a bumper associated with the vehicle, an electrically releasable means connected with the bumper and with said brake lever and clutch pedal and thrown into operation on said bumper contacting with an object, said electrically releasable means automatically operating said lever and edal for applying the brake and releasing t e clutch.

3. In combination with a motor driven vehicle provided with means for controlling the direction of movement thereof, a brake associated with the vehicle, a bumper at the front and rear ends of the vehicle, means connected with said bumpers and associated with the brake for operating the same to retard the momentum of the vehicle on an impact being delivered to the bumpers, and means operated in accordance with the direction of movement of the vehicle for renderin inoperative one of said bumpers.

4. n combination with a vehicle brake lever and its associated brake, a plunger connected with the lever and capable of proj action for moving the lever to operative position, a coiled spring for operating the plunger, a releasable latch for retaining the plum ger in a retracted position and a solenoid operated from distant point for releasing said plunger retaining means.

5. In combination with a vehicle brake lever, and its associated brake, of a spring actuated plunger connected withthe lever and adapted for projecting to move the lever to apply its associated brake, electrically controlled flexible means for retaining said plunger in its retracted position, abumper associated with the vehicle, a circuit from the releasable means to the bumper, and a switch in said circuit adapted for operation on said bumper impacting with an object whereby said releasable means is operated to permit said plunger to apply the vehicle brake.

I 6. In combination with a vehicle brake lever, of an elongated member pivotally connected thereto, a shoulder on said member, a tubular plunger for receiving said member and within which said member is capable of free longitudinal movement on the manual operation of the lever, means for projecting the' plunger, means for retaining the plunger in retracted position, an impact receiving member associated with the vehicle and devices operated on the impact receiving member receiving an impact for releasing the retaining means to permit operation of the projector to operate the brake lever.

7. In combination with a motor driven vehicle provided with a brake lever and a clutch pedal capable of. operation independently of each other, an impact receiving member asociated with the vehicle, a spring for operating said lever and pedal and normally held under compression, electrical means actuated on an impact being delivered to the impact receiving member for automatically releasing said spring to permit the same to operate said brake lever and clutch pedal, said pedal and lever being capable of operation independently of said actuated means.

8. In a motor operated vehicle having brakes; electric circuit connections including contacts on an exposed part of the vehicle adapted to engage an obstacle and close the circuit, electromagnetic means adapted to be operated by said circuit and comprising I ,brakes, electric circuit connections includa spring and connections adapted to actuate the vehicle brakes when said spring is released, and releasing means for said spring actuated when said circuit energizes said electromagnetic means.

9. In amotor operated vehicle having brakes, electric circuit connections including contacts on an exposed part of the vehicle adapted to engage an obstacle and close the circuit, electromagnetic means adapted to be operated b said circuit and comprising a spring an connections adapted to actuate the vehicle brakes when said spring is released, and releasin means for said spring actuated when sai circuit energizes said electromagnetic means, and a hand operable lever adapted to restore said spring.

10. In a motor operated vehicle having brakes, electric circuit connect-ions including contacts on an exposed part of the vehicle adapted to engage an obstacle and close the circuit, electromagnetic means adapted to be operated by said circuit, mechanism adapted to actuate the vehicle brakes and to interrupt the motor operating connections when said mechanism is released, and releasing means for said mechanism actuated by said electromagnetic means.

11. In a motor operated vehicle having brakes, electric circuit connections including contacts on an exposed part of the vehicle adapted to engage anobstacle and close the circuit, electromagnetic means adapted to be operated by said circuit, mechanism adapted to actuate the vehicle brakes and to interrupt the motor operating connections when said mechanism is released, and releasing means for said mechanism actuated by said electrobrakes, electric circuit connections including contacts on the front and rear portions of the vehicle adapted to engage an obstacle and close the circuit, electromagnetic means adapted to be operated by said circuit and comprising a spring and connections adapted to actuate the vehicle brake when said spring is released, and releasing means for said spring actuated when said circuit energizes said electromagnetic means, and a lever to restore said spring.

14. In a motor operated vehicle having ing contacts on the front and rear portions of the vehicle adapted to engage an obstacle and close the circuit, electromagnetic means adapted to be operated by said circuit and comprising a spring and connections adapted to actuate the vehicle brake and to interrupt the motor operating connections when said spring is released, and releasing means for said spring actuated when said circuit energizes said electromagnetic -means.

15. In a motor operated vehicle having brakes, electric circuit connections including'contacts on the front and rear portions of the vehicle adapted to engage an obstacle and close the circuit, electromagnetic means adapted to be operated by said circuit and comprising a spring and connections adapted to actuate the vehicle brake and to interrupt the motor operating connections when said spring is released, and releasing means for said spring actuated when said circuit energizes sald electromagnetic means and a lever to restore said spring.

16. In a motor operated vehicle having brakes, electric circuit connections including contacts on the front and rear portions of the vehicle adapted to engage an obstacle and close the circuit, electromagnetic means adapted to be operated by said circuit and adapted to actuate the vehicle brake when said means is released, and a releasing device for said means actuated when said circuit energizes said electromagnetic means and a switch in the circuit connections to said rear contacts and connected with the motor operated portions of the vehicle and normally maintaining the rear contact circuit open unless the vehicle is backed and at such times automatically closing said circuit to said rear contacts.

17. In a motor operated vehicle having brakes, electric circuit connections including contacts on the front and rear portions of the vehicle adapted to engage an obstacle and close the circuit, electromagnetic means adapted to be operated by said circuit and comprising a spring and connections adapt- .ed to actuate the vehicle brake when said spring is released, releasing means for said spring actuated when said circuit energizes said electromagnetic means, and a lever to restore said spring, and a switch in the circuit connections to said rear contacts and connected with the motor operated portions of the vehicle and normally maintaining the rear contact circuit open unless the vehicle is hacked and at such times automatically closing said circuit to said rear contacts.

18. In a motor operated vehicle having brakes, electric circuit connections including contacts on the front and rear portions of the vehicle adapted to engage an obstacle and close the circuit, electromagnetic means adapted to be operated by said circuit and comprising a spring and connections adapted to actuate the vehicle brake and to interrupt the motor operating connections when said spring is released, releasing means for said spring actuated when said circuit energizes said electromagnetic means, and a switch in the circuit connections to said rear contacts and connected with the motor operated portions of the vehicle and normally maintaining the rear contact circuit open unless .the vehicle is backed and at such times automatically closing said circuit to said rear contacts.

19. In a motor operated vehicle having brakes, electric circuit connections including contacts on the front and rear portions of the vehicle adapted to engage an obsta-- cle and close the circuit, electromagnetic means adapted to be operated by said circuit and comprising a spring and connections adapted to actuate the vehicle brake and to interruptthe motor operating connections when said spring is released, and releasing means for said spring actuated, when said circuit energizes said electromagnetic means and a lever to restore said spring and a switch in the circuit connections to said rear contacts and connected with the motor operated portions of the vehicle and normally maintaining the rear contact circuit open unless the vehicle is hacked and, at such times automatically closing said circuit to said rear contacts. KARL OSTEN SCHAUMAN. 

